diff options
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 7d6e2aa26980..4cbe09e66db2 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -469,6 +469,9 @@ enum dma_residue_granularity { * should be checked by controller as well * @min_burst: min burst capability per-transfer * @max_burst: max burst capability per-transfer + * @max_sg_burst: max number of SG list entries executed in a single burst + * DMA tansaction with no software intervention for reinitialization. + * Zero value means unlimited number of entries. * @cmd_pause: true, if pause is supported (i.e. for reading residue or * for resume later) * @cmd_resume: true, if resume is supported @@ -483,6 +486,7 @@ struct dma_slave_caps { u32 directions; u32 min_burst; u32 max_burst; + u32 max_sg_burst; bool cmd_pause; bool cmd_resume; bool cmd_terminate; @@ -775,6 +779,9 @@ struct dma_filter { * should be checked by controller as well * @min_burst: min burst capability per-transfer * @max_burst: max burst capability per-transfer + * @max_sg_burst: max number of SG list entries executed in a single burst + * DMA tansaction with no software intervention for reinitialization. + * Zero value means unlimited number of entries. * @residue_granularity: granularity of the transfer residue reported * by tx_status * @device_alloc_chan_resources: allocate resources and return the @@ -846,6 +853,7 @@ struct dma_device { u32 directions; u32 min_burst; u32 max_burst; + u32 max_sg_burst; bool descriptor_reuse; enum dma_residue_granularity residue_granularity; |